243722 has 8 divisors (see below), whose sum is σ = 377472. Its totient is φ = 117900.

The previous prime is 243709. The next prime is 243769. The reversal of 243722 is 227342.

It is a happy number.

243722 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a d-powerful number, because it can be written as 2² + 4 + 7 + 3¹¹ + 2¹⁰ + 2¹⁶ .

It is a junction number, because it is equal to n+sod(n) for n = 243694 and 243703.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 243722.

It is an unprimeable number.

243722 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1904 + ... + 2027.

It is an arithmetic number, because the mean of its divisors is an integer number (47184).

2²⁴³⁷²² is an apocalyptic number.

243722 is a deficient number, since it is larger than the sum of its proper divisors (133750).

243722 is a wasteful number, since it uses less digits than its factorization.

243722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3964.

The product of its digits is 672, while the sum is 20.

The square root of 243722 is about 493.6820839366. The cubic root of 243722 is about 62.4642568961.

The spelling of 243722 in words is "two hundred forty-three thousand, seven hundred twenty-two", and thus it is an iban number.